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On Forward Error Correction in IEEE 802.15.4 Wireless Sensor Networks
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
2012 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Wireless Sensor Networks (WSN) are used in many applications, for example industrial applications, automatic control applications, monitoring applications, to name but a few. Although WSN can employ different standards in order to achieve short range wireless communication, the mainstream of the market is toadopt the low-power, low-rate IEEE 802.15.4 standard. However, this standard does not specify any block codes on the Physical layer (PHY) and the MAC sublayer. Reliability and energy efficiency are two important metrics used to evaluate the WSN performance. In order to enhance the reliability of the WSN performance, schemes such as Forward Error Correction (FEC) and HybridAutomatic Repeat-reQuest (HARQ) can be introduced on the PHY and MACsublayer when transmitting signals. However, this will reduce the energy efficiency of the WSN. In order to investigate what does affect the reliability and energy efficiency, this thesis has been conducted with the assistance of Matlab simulations, which simulate different transmission schemes proposed by the authors. Based on the simulations, both the reliability and energy efficiency can be evaluated and the results are illustrated for both metrics. The objective of this thesis is to determine a scheme that is able to meet these metric requirements.

Place, publisher, year, edition, pages
Keyword [en]
IEEE 802.15.4 standard, WSN, FEC, HARQ, reliability, energy efficiency
National Category
Engineering and Technology
URN: urn:nbn:se:miun:diva-16614OAI: diva2:538735
Subject / course
Computer Engineering DT1
2012-06-05, 14:00 (English)
Available from: 2012-09-11 Created: 2012-07-02 Last updated: 2012-09-13Bibliographically approved

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Bachelor thesis by Wei Li and Zhiyuan Guo (Mid Sweden University)(671 kB)574 downloads
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